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Finding the Fourth Proportional to 201,208.60, 301,812.90 and 198,584.20

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Solution

The fourth proportional to 201,208.60, 301,812.90 and 198,584.20 is: 297,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,208.60 : 301,812.90 = 198,584.20 : x
  2. Step 2: Convert to fraction form
    201,208.60/301,812.90 = 198,584.20/x
  3. Step 3: Cross multiply
    201,208.60x = 301,812.90 × 198,584.20
  4. Step 4: Simplify right side
    201,208.60x = 59,935,273,296.18
  5. Step 5: Solve for x
    x = 59,935,273,296.18/201,208.60
  6. Step 6: Final answer
    x = 297,876.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.